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Finding the Fourth Proportional to 30,406.03, 45,611.48 and 10,689.01

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Solution

The fourth proportional to 30,406.03, 45,611.48 and 10,689.01 is: 16,034.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.03 : 45,611.48 = 10,689.01 : x
  2. Step 2: Convert to fraction form
    30,406.03/45,611.48 = 10,689.01/x
  3. Step 3: Cross multiply
    30,406.03x = 45,611.48 × 10,689.01
  4. Step 4: Simplify right side
    30,406.03x = 487,541,705.03
  5. Step 5: Solve for x
    x = 487,541,705.03/30,406.03
  6. Step 6: Final answer
    x = 16,034.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.